Dhammapada · 25.2
Kāyena saṃvaro sādhu, sādhu vācāya saṃvaro;Manasā saṃvaro sādhu, sādhu sabbattha saṃvaro;Sabbattha saṃvuto bhikkhu, sabbadukkhā pamuccati.
Kayena samvaro sadhu, sadhu vacaya samvaro; Manasa samvaro sadhu, sadhu sabbattha samvaro; Sabbattha samvuto bhikkhu, sabbadukkha pamuccati.
Good is restraint of the body; good is restraint of speech; good is restraint of mind; good is restraint everywhere. The bhikkhu restrained everywhere is freed from all suffering.
— Dhammapada 25.2
Source: Pali text from the Khuddaka Nikāya of the Pali Canon (oldest extant Buddhist scripture, compiled c. 3rd century BCE). Public-domain English readings drawn from F. Max Müller's translation in Sacred Books of the East, Vol X (1881) and the Buddhist Publication Society's freely-licensed Acharya Buddharakkhita rendering.